Gravitational Effects of Rotating Bodies

Details Gravitational Effects of Rotating Bodies Gravitational Effects of Rotating Bodies

2000-06-21

arxiv.org/abs/gr-qc/0006075v2

Mod. Phys. lett. A 16 (2001) 789-794

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

LaTex, 6 pages

Scientific paper

We study two type effects of gravitational field on mechanical gyroscopes (i.e. rotating extended bodies). The first depends on special relativity and equivalence principle. The second is related to the coupling (i.e. a new force) between the spins of mechanical gyroscopes, which would violate the equivalent principle. In order to give a theoretical prediction to the second we suggest a spin-spin coupling model for two mechanical gyroscopes. An upper limit on the coupling strength is then determined by using the observed perihelion precession of the planet's orbits in solar system. We also give predictions violating the equivalence principle for free-fall gyroscopes .

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